* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #e4e6eb !important;
}

header,
.nav-list-bottom {
    background-color: #fff !important;
}

img {
    border-style: none;
}

li {
    list-style: none;
}

a:hover {
    text-decoration: none !important;
}

header {
    background: var(--juejin-navigation);
    border-bottom: 1px solid #f1f1f1;
    color: #909090;
    height: 5rem;
    line-height: 5rem;
    /* position: fixed; */
}

.w {
    position: relative;
    width: 1250px;
    height: 60px;
    margin: 0 auto;
}

.nav-list>li {
    float: left;
    text-align: center;
    width: 30px;
    font-size: 14px;
    margin-left: 30px;
}

.nav-list>li>a {
    color: #515767;
    text-decoration: none;
}

.nav .nav-list>li:hover {
    border-bottom: 1px solid blue;
}

.input-group-text {
    height: 38px;
    cursor: pointer;
}

.nav-list-bottom {
    background: var(--juejin-navigation);
    border-bottom: 1px solid #f1f1f1;
    color: #909090;
    height: 45px;
    line-height: 45px;
}

.container {
    width: 900px !important;
}

.nav-list-bottom .nav-list>li {
    font-size: 12px;
    margin-left: 15px;
}

.widen {
    width: 50px !important;
}

.nav-list-bottom .nav-list>li:hover a {
    color: #007bff !important;
}

.clearfix:after {
    /*伪元素是行内元素 正常浏览器清除浮动方法*/
    content: "";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}

.nav-list-bottom .nav-list>li:first-child {
    margin-left: -15px;
}